Improvement in knocking-over bits for knitting-machines



W. D. ORMSBY. Knocking-Over Bit for K11Hating-Machines.v

Patented May 27, 1879..

INVENTOR Z a//mz/f BY WITNESSES .WM M /6. & afwv lv/V ATTORNEYS.

MPEYERS. PH

UNITED TATES PATENT OFFICE WILLIAM D. ORMSBY, OF WALTHAM, MASSACHUSETTS.

IMPROVEMENT lN KNOCKING-OVER BITS FOR KNITTING-MACHINES.

Specification forming part of Letters Patent No. 215,963, dated May 27,1879; application filed December 21, 1878.

To all whom it may concern:

Be it known that I, WILLIAM D. ORMsBY, of Waltham, in the county ofMiddlesex and State of Massachusetts, have invented a new and usefulImprovement in Knockipg-Over Bits for Knitting VIachines, of which thefollowing is a specification.

The invention consists in combining, in a knittingmachine, the slittedand mortised frame, bits having a projection, an elastic block or strip,and a removable bar, as hereinafter described.

In the accompanying drawings, Figure 1 is a plan view of a portion of abit-holding frame with the bits applied. Fig. 2 is a section on linen:00, Fig. 1. I

Similar letters of reference indicate corresponding parts.

The bit-holdin g frame or stock will be made in sections, or in onepiece for each stocking,

. a being a section, preferably of brass. In the upper surface thereof across-mortise, b, is cut, and at the forward edge slits are outextending through to the mortise I), in which slits the thin steelknocking-over bits care held, their outer ends being of usual shape, andprojecting in the usual manner.

The end of each bit 0 that is within mortise b is formed with adownward-projecting portion, (1, that takes behind a ledge at the bottomof the mortise b, to prevent the bits from coming out endwise, and thisledge also forms a fulcrum on which the bits swing. The upper side ofthis end of the bit is tapered,

and passes beneath a rubber block or strip, 0, that is retained in placeby a removable strip or bar 1. This bar 9 is retained in place inmortise b by a screw, h, so that it can be removed when the bits are tobe taken out or replaced.

The rubber strip e exerts an elastic press ure upon the bits, whichretains them in their normal positions, and permits them to rock uponthe verge or fulcrum when pressure is put upon them at each course ofthe knitting. This movement of the bits permits the stitches to bethrown off at every course as the inequalities may pass the bits,thereby preventing the formation of double stitches and cutting of theyarn. In addition, the frame and bits described may be used with acoarser grade of yarn than could be used with the V hits as ,heretoforeconstructed.

In Fig. 3 a bit, 0, is shown in a slightly modified form.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- In a knitting-1n achine, the combination, withthe slitted and mortised frame a, of bits 0, formed with a projection,01, the elastic block or strip 6, and removable bar g, substantially asdescribed and shown, and for the purposes specified.

WILLIAM DANIEL ORMSBY. WVitnesses:

MosEs P. GUPTILL, WILLIAM OoULT.

